383
FNCA52 TJSJ 160730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST TUE JUN 16 2026
DISCUSSION
A FIRE DANGER STATEMENT HAS BEEN ISSUED FOR TODAY, WITH THE
GREATEST FIRE DANGER EXPECTED DURING THE LATE MORNING AND EARLY
AFTERNOON HOURS ACROSS PORTIONS OF SOUTHERN, WESTERN, AND CENTRAL
INTERIOR PUERTO RICO.
LOOKING AHEAD, THE OVERALL FIRE WEATHER PATTERN IS EXPECTED TO
CHANGE LITTLE OVER THE NEXT 5 TO 7 DAYS. WHILE PATCHES OF
MOISTURE WILL CONTINUE TO PRODUCE OCCASIONAL FAST-MOVING SHOWERS
AND A TROPICAL WAVE MAY TEMPORARILY INCREASE MOISTURE AND SHOWER
ACTIVITY LATE THIS WEEK, RAINFALL IS EXPECTED TO REMAIN LOCALIZED
AND INSUFFICIENT TO PRODUCE WIDESPREAD WETTING OF CRITICALLY DRY
FUELS OR SUBSTANTIALLY IMPROVE ONGOING DROUGHT CONDITIONS. AS
DRIER AIR RETURNS BEHIND THE WAVE, CRITICALLY DRY FUELS AND
PERIODS OF BREEZY WINDS WILL CONTINUE TO FAVOR WILDFIRE SPREAD
WHERE IGNITIONS OCCUR.
PRZ014-162000-
SOUTHEAST COASTAL PLAINS-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 40
TEMP (24H TREND) 91 (+2) 73 (-4) 92
RH % (24H TREND) 45 (-8) 88 (+5) 44
WIND 20FT/EARLY(MPH) E 17 E 13 E 18 G25
WIND 20FT/LATE(MPH) SE 17 E 11 SE 19 G27
MIXING HGT(FT-AGL/MSL)5020 5160
TRANSPORT WND (MPH) E 17 E 17
VENT RATE (KT-FT) 75300 77400
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-162000-
SOUTHERN HILLS-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 30
TEMP (24H TREND) 88 (+3) 69 (-5) 88
RH % (24H TREND) 56 (-1) 98 (+10) 56
WIND 20FT/EARLY(MPH) E 13 E 12 E 13
WIND 20FT/LATE(MPH) SE 13 E 12 SE 14
MIXING HGT(FT-AGL/MSL)5570 5770
TRANSPORT WND (MPH) E 16 E 15
VENT RATE (KT-FT) 77980 75010
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-162000-
NORTH COASTAL PLAINS-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 20
TEMP (24H TREND) 90 (0) 72 (-5) 91
RH % (24H TREND) 57 (-3) 96 (+8) 57
WIND 20FT/EARLY(MPH) E 14 E 18 E 14
WIND 20FT/LATE(MPH) E 21 E 11 E 20
MIXING HGT(FT-AGL/MSL)5440 4940
TRANSPORT WND (MPH) E 16 E 15
VENT RATE (KT-FT) 76160 64220
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-162000-
NORTHERN HILLS-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 40
TEMP (24H TREND) 89 (0) 70 (-4) 89
RH % (24H TREND) 58 (-1) 97 (+8) 58
WIND 20FT/EARLY(MPH) E 13 E 16 E 13
WIND 20FT/LATE(MPH) E 18 SE 8 E 18
MIXING HGT(FT-AGL/MSL)6200 6400
TRANSPORT WND (MPH) E 13 E 13
VENT RATE (KT-FT) 68200 70400
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-162000-
WEST COAST-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 30
TEMP (24H TREND) 92 (+1) 72 (-3) 92
RH % (24H TREND) 56 (+1) 95 (+10) 56
WIND 20FT/EARLY(MPH) E 13 E 12 E 12
WIND 20FT/LATE(MPH) SE 16 E 11 SE 13
MIXING HGT(FT-AGL/MSL)5160 5260
TRANSPORT WND (MPH) E 9 E 9
VENT RATE (KT-FT) 41280 42080
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-162000-
EASTERN INTERIOR-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 30
TEMP (24H TREND) 88 (+1) 70 (-5) 89
RH % (24H TREND) 59 (-2) 99 (+8) 58
WIND 20FT/EARLY(MPH) E 12 E 13 E 14
WIND 20FT/LATE(MPH) E 14 E 13 E 13
MIXING HGT(FT-AGL/MSL)5900 6180
TRANSPORT WND (MPH) E 16 E 15
VENT RATE (KT-FT) 82600 80340
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-162000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 30
TEMP (24H TREND) 83 (+2) 69 (-4) 83
RH % (24H TREND) 67 (-4) 99 (+4) 65
WIND 20FT/EARLY(MPH) E 11 E 11 E 12
WIND 20FT/LATE(MPH) E 12 E 11 E 12
MIXING HGT(FT-AGL/MSL)4260 4560
TRANSPORT WND (MPH) E 17 E 15
VENT RATE (KT-FT) 63900 59280
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-162000-
CENTRAL MOUNTAIN RANGE-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 50
TEMP (24H TREND) 88 (+4) 66 (-6) 89
RH % (24H TREND) 58 (-5) 98 (+9) 58
WIND 20FT/EARLY(MPH) E 10 E 9 E 9
WIND 20FT/LATE(MPH) E 10 E 6 E 11
MIXING HGT(FT-AGL/MSL)7240 7140
TRANSPORT WND (MPH) E 9 E 12
VENT RATE (KT-FT) 57920 71400
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-162000-
CAYEY MOUNTAIN RANGE-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 50
TEMP (24H TREND) 84 (+2) 69 (-4) 84
RH % (24H TREND) 65 (+3) 100 (+4) 64
WIND 20FT/EARLY(MPH) E 10 E 10 E 11
WIND 20FT/LATE(MPH) E 11 E 10 E 12
MIXING HGT(FT-AGL/MSL)5250 5210
TRANSPORT WND (MPH) E 18 E 16
VENT RATE (KT-FT) 84000 72940
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-162000-
VIEQUES-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 0 20
TEMP (24H TREND) 88 (+1) 75 (-3) 88
RH % (24H TREND) 60 (-3) 90 (+3) 59
WIND 20FT/EARLY(MPH) E 16 E 16 E 16
WIND 20FT/LATE(MPH) E 16 E 16 E 13
MIXING HGT(FT-AGL/MSL)3530 3690
TRANSPORT WND (MPH) E 17 E 20
VENT RATE (KT-FT) 52950 62730
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-162000-
CULEBRA-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 20
TEMP (24H TREND) 89 (+1) 76 (-2) 90
RH % (24H TREND) 58 (-6) 91 (+4) 58
WIND 20FT/EARLY(MPH) E 17 E 16 E 16
WIND 20FT/LATE(MPH) E 17 E 16 E 14
MIXING HGT(FT-AGL/MSL)3420 3470
TRANSPORT WND (MPH) E 18 E 17
VENT RATE (KT-FT) 54720 52050
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-162000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 0
TEMP (24H TREND) 92 (+2) 74 (-3) 93
RH % (24H TREND) 46 (-6) 80 (+3) 47
WIND 20FT/EARLY(MPH) E 19 G27 E 18 E 17 G24
WIND 20FT/LATE(MPH) SE 21 G29 E 16 SE 19 G26
MIXING HGT(FT-AGL/MSL)5040 5190
TRANSPORT WND (MPH) E 17 E 16
VENT RATE (KT-FT) 75600 72660
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-162000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 30
TEMP (24H TREND) 86 (+1) 76 (-2) 87
RH % (24H TREND) 63 (-4) 90 (+3) 62
WIND 20FT/EARLY(MPH) E 18 E 17 E 17
WIND 20FT/LATE(MPH) E 17 E 17 E 14
MIXING HGT(FT-AGL/MSL)3340 3530
TRANSPORT WND (MPH) E 18 E 17
VENT RATE (KT-FT) 53440 52950
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-162000-
ST CROIX-
330 AM AST TUE JUN 16 2026
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 10 0 10
TEMP (24H TREND) 87 (+1) 75 (-3) 88
RH % (24H TREND) 63 (-3) 90 (+5) 61
WIND 20FT/EARLY(MPH) E 16 E 16 E 16
WIND 20FT/LATE(MPH) E 14 E 16 E 14
MIXING HGT(FT-AGL/MSL)4520 5030
TRANSPORT WND (MPH) E 18 E 18
VENT RATE (KT-FT) 72320 80480
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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